The Discovery Channel's seven-day "Shark Week" marathon is back for another year, and Chicago's Shedd Aquarium is celebrating in a big way. While you'll have the chance to learn plenty about sharks if ...
The 20 slick, mouse-gray blacktip reef sharks zipping through the waters at the National Aquarium look nothing like the bloodthirsty beasts of "Sharknado." Two years old and only slightly longer than ...
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